Congrats. Now every young man who has something to prove is gonna head straight for the glacial lakes.

[He doesn't sound upset; more like he's joking. And he is! But it's a joke with some real intent behind it. He knows how young men think, being one and all, and he can imagine how he would have reacted to being told something like this when he was even younger.

She's doing the best she can though, and he appreciates her willingness to share, so he adds, as a sort of olive branch:]

Smart to wait to get more info before you start naming names.